The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second. It is named after Heinrich Rudolf Hertz, the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are commonly expressed in multiples: kilohertz (103 Hz, kHz), megahertz (106 Hz, MHz), gigahertz (109 Hz, GHz), terahertz (1012 Hz, THz), petahertz (1015 Hz, PHz), and exahertz (1018 Hz, EHz).
In mathematics, deconvolution is an algorithm-based process used to reverse the effects of convolution on recorded data. The concept of deconvolution is widely used in the techniques of signal processing and image processing. Because these techniques are in turn widely used in many scientific and engineering disciplines, deconvolution finds many applications.
The Atom is a name shared by several fictional comic book superheroes from the DC Comics universe.
In science fiction stories or Superhero comics, X-ray vision is the ability to see through physical objects at the discretion of the holder of this superpower. The most famous possessor of this ability is DC Comics' iconic superhero character, Superman.
In physics, terahertz time-domain spectroscopy (THz-TDS) is a spectroscopic technique in which the properties of matter are probed with short pulses of terahertz radiation. The generation and detection scheme is sensitive to the sample's effect on both the amplitude and the phase of the terahertz radiation. By measuring in the time-domain, the technique can provide more information than conventional Fourier-transform spectroscopy, which is only sensitive to the amplitude.
To help compare different orders of magnitude, the following list describes various frequencies, which is measured in hertz.
X-ray specs are American novelties, purported to allow users to see through or into solid objects. In reality, the spectacles merely create an optical illusion; no X-rays are involved. The current paper version is sold under the name "X-Ray Spex"; a similar product is sold under the name "X-Ray Gogs".
The Justice Guild of America is a superhero team featured in the Justice League animated series two-part episode "Legends", a homage to the Golden Age Justice Society of America, and to a degree the Silver Age Justice League of America.
Xi-Cheng Zhang, is a Chinese-American Physicist. He was born in the People's Republic of China. Zhang is currently the Parker Givens Chair of Optics at the University of Rochester, and the director of the Institute of Optics. He is also the Chairman of the Board and President of Zomega Terahertz Corporation.
Terahertz tomography is a class of tomography where sectional imaging is done by terahertz radiation. Because terahertz radiation can "see" what visible light and IR can not see, unique information can be obtained by terahertz tomography. This is in a sense similar to X-ray except without all the hazardous effects of X-ray.
A terahertz metamaterial is a class of composite metamaterials designed to interact at terahertz (THz) frequencies. The terahertz frequency range used in materials research is usually defined as 0.1 to 10 THz.
Jeff F. King is a Canadian screenwriter, comics writer, television producer and film director. King served as co-executive (1994–95) and then executive producer (1995–96) for the Canadian television series Due South and was the co-recipient of three Gemini Awards. He then worked as the producer of the CBS show EZ Streets and as co-executive producer for Stargate SG-1. His other television credits include Star Trek: Deep Space Nine, Models Inc., Relic Hunter, Strange Days at Blake Holsey High, Mutant X, Dinosapien and White Collar.
TeraView Limited, or TeraView, is a company that designs terahertz imaging and spectroscopy instruments and equipment for measurement and evaluation of pharmaceutical tablets, nanomaterials, ceramics and composites, integrated circuit chips and more.
Terahertz spectroscopy detects and controls properties of matter with electromagnetic fields that are in the frequency range between a few hundred gigahertz and several terahertz. In many-body systems, several of the relevant states have an energy difference that matches with the energy of a THz photon. Therefore, THz spectroscopy provides a particularly powerful method in resolving and controlling individual transitions between different many-body states. By doing this, one gains new insights about many-body quantum kinetics and how that can be utilized in developing new technologies that are optimized up to the elementary quantum level.
Terahertz gap is an engineering term for a frequency band in the terahertz region of the electromagnetic spectrum between radio waves and infrared light for which practical technologies for generating and detecting the radiation do not exist. It is defined as 0.1 to 10 THz. Currently, at frequencies within this range, useful power generation and receiver technologies are inefficient and impractical.
Lego DC Comics Super Heroes: Justice League vs. Bizarro League is an animated comedy film based on the Lego and DC Comics brands, released on February 10, 2015 on Blu-ray and DVD. This is the third Lego DC Comics film following Lego Batman: The Movie – DC Super Heroes Unite and Lego DC Comics: Batman Be-Leaguered. Some actors from various DC properties reprise their respective roles, including Nolan North as Superman, Khary Payton as Cyborg, Diedrich Bader as Green Lantern and Tom Kenny as The Penguin and Plastic Man.
Deblurring is the process of removing blurring artifacts from images, such as blur caused by defocus aberration or motion blur. The blur is typically modeled as the convolution of a point spread function with a hypothetical sharp input image, where both the sharp input image and the point spread function are unknown. This is an example of an inverse problem. In almost all cases, there is insufficient information in the blurred image to uniquely determine a plausible original image, making it an ill-posed problem. In addition the blurred image contains additional noise which complicates the task of determining the original image. This is generally solved by the use of a regularization term to attempt to eliminate implausible solutions. This problem is analogous to echo removal in the signal processing domain. Nevertheless, when coherent beam is used for imaging, the point spread function can be modeled mathematically. By proper deconvolution of the point spread function and the image, the resolution can be enhanced several times.
